Melting-furnace.



N0. 792,642. PATENTED JUNE 20, u1905. W. E. WILLIAMS.

MELTING PURNACE.

APPLIoATIoN FILED JUNE 20,1903.

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No. 792,642. PATENTED JUNE 20, 1905.

f W. E. WILLIAMS.

MELTING FURNAGE.

APPLIOATION FILED JUNE 20,1903.

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No. 792,642. PATENTED JUNE 20, 1905.

W. E. WILLIAMS.

MELTING FURNACE.

APPLICATION FILED JUNE 20,1903.

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Km2/Leg UNITED STATES Patented June 20, 1905.

PATENT OFFICE.

IVIELTING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 792,642, dated J' une 20, 1905.

Application filed June 20, 1903. Serial No. 162,417.

LIAMs, a citizen of the United States of America, and a resident of Chicago, county of Cook,

and State of Illinois, have vinvented cert-ain new and useful Improvements in Melting-Fu rnaces, of which the following is aspecification.

The object of my invention is to provide a furnace for melting, smelting, refining, puddling, or roasting metals or ores that will be of the simplest form, most convenient and efficient, and one wherewith the fuel and blast are heated by the waste heat of the escaping gases.

Reference will be had to the accompanying drawings, in which- Figure 1`is a side sectional elevation of the furnace. Fig. 2 is a plan sectional detail showing the pinion that revolves the furnace-body. Fig. 3 is a side elevation with the parts in a dierent position from that of Fig. 1. Fig. 4 is a section of one of the foundation-blocks on line 4 4 of Fig. 3. Fig. 5 is a plan of Fig. 3. Fig. 6 is a section on line 6 6 of Fig. 1. Fig. 7 is a section on line 7 7 of Fig. 1.

' terior of the chamber in lining it.

My furnace preferably uses gaseous liquid or powdered fuel; but some features of it may be used with any kind of fuel.

In the drawings, 2 designates the furnacebody, composed of a casing 3, lined with suitable refractory material 4, thereby forming the interior chamber 5, which I prefer to be nearly spherical in shape with a conical frustum projection 6 at one point for the opening to the chamber, this being the only opening to the furnace-chamber when the same is in use. However, any suitably-shaped body or chamber may be used.

The casing 3 is made with a removable bottom section 7, which permits access to the in- The furnace-body 2 is mounted to revolve in a ring 8 and is retained therein by means of a circular gear-rack 9, fastened to the casing 3 and retained in ring 8 by ribs 56 and l0. The ring 8 is mounted on trunnions 11 and 12, supported in journals in posts 13 and 14. The trunnion 11 is hollow, and through it passes a shaft 15, which carries a pinion 16, which engages the teeth of rack 9. Upon shaft 15 there is mounted a worm-gear 17, engaged and driven by a worm 18, splined upon shaft 19, which is driven by a pulley 20, whereby power is applied to cause the furnace 2 to revolve within the ring 8. A clutch 21 is provided to engage the pulley 2O with shaft 19 where the furnace 2 is to remain at rest. Upon trunnion 11 there is a worm-gear 22, which is engaged by a worm 23, splined upon shaft 24, extending back and driven by a set of pulleys 25 26 27. Pulley 26 is loose at all times-and runs upon a sleeve connected to pulley 25 and 27, which latter may be engaged as desired by clutch 28 to drive shaft 24. The belts which drive the pulleys are arranged to travel in different directions, so that by shifting the belts and engaging and disengaging the clutches the shaft 24 may be made to travel in either direction, thereby causing the ring 8 and the furnace 2 to revolve about the axis of the trunnions as desired.

A hand-wheel 29, mounted on a shaft 30, carrying a bevel-gear 31, which engages a bevel-gear 32, connected to worm 23, permits the furnace to be revolved about the trunnions by hand when desired. The stands or posts 13 and 14 are mounted to slide upon the base or foundation blocks 33 and are `secured thereto by bolts 34, passing through slots 35 in base-blocks and through gib-bars 36, located in cavities 37 of base-blocks. Extending across the base-blocks there is a rockershaft 38, provided with handles 39 and adjustable links 40, which latter are connected to the stands 13 and 14, whereby the stands,

and hence the furnace-body, may be moved along the base-blocks when the gib-bars 36 are not clamped tightly. Mounted in a fixed position there is the flue-section 41, composed of an outer casing inclosing an inner flue 42. The outer flue terminates at the bottom in a large flange 43, adapted tofit over the projection 6 of the furnace-body 2, and theinner flue 42 extends below the flange 43 and is provided with a deflecting enlargement 44. The material of these flues and casing's may be such as is adapted for the purpose.

The annular space 57 around the flue 42 is IOO 48, and the pipe 47 is arranged to pass inside the flue 42, with a section 49, which isexpos'ed to the heat of the escaping gases, and thereby heats the .fuel onits entry to the furnace. The pipe y49 then passes out and is connected to a ring 50, connected to the jet-pipes 51,-V extending down in a direction to discharge into. the: furnace-chamber Atoward its lower :.fuel come together at the fuel-jets.

:outer portions and be commingled with `the air-blast and burned as fastas the blast.y and The entering blast in the annular space 57 is heated l by the heat of the escaping furnace-.gases through the flue 42.

A vent-hole52 out from flue 42-to the open air permits the attendant to notice the condition of the escaping furnace-gases, and this l vent is closed as desired by the cover k53, held in place by the rocker-shaft 54,. provided with the weighted lever 55, which keeps the vent normally closed. The iues for the escaping vgases and the entering blast may beecarried to any suitable position and arranged with heat- Space shown by-the drawings.

. ers, whereby a larger radiation may be secured than is possible with the limited. amount of The arrangement ofV the flues after leaving the furnace may be such that the gases and blast may be passed through brickwork stoves,-as is common in other furnace-work.

The object sought in my invention is to provide a means of connecting the a1r= and blast -to a vfurnace'of the type shown that will per- .mit such any arrangement.

...mentl of the blast and exhaust fluescause a rotary action ofthe'rflames that imparts greater The operation:ofthe-furnace iszas follows:

Y ,The ,furnace-body. is rightedup from yposition .iftionto -be accessible,l and asmall lire of kwood of Fig. 3, so thatthe openingtat 6 is in=posi` .for a few live coals are placed inthe lchamber 5. i :Then-the furnace is` revolved,.'either` by hander-power, about the trunnionuntil the sition is maintained by the-rocker-shaft being locked by having the pivotsof the=linls :pass the. dead-centers of their ,thrust or byslocking the rocker-shaft orbyclampingthe stands-by means of the bolts to the-..baseblocks. Thel l lst,

blast and fuelvv are now turnedl on., andthe'fuel is ignited-.bythe fire or coals above mentioned. .a

The furnace-body 2 is made to revolve in the ring 8by means of the pulley 2O and the mechanism of .shafts and gearing before described.

After the furnace is suflciently heated up, thezblast and fuel are shut off and the furnace-body 2 is disengaged from flange 43 and turned over-in positiony to.y receive charge. When charged, the body 2 is again connected to flange 43 and the ues, the blast and fuel are tur-ned on, and the body is set in motion, revolving Within the ring 8, as before described. Thus the contents ofthe furnace are constantly exposed to the freshly-heated portion of thelining that comes underneath it as the furnace revolves, and the melted metal keeps flowing down to the bottom, lwhile the u-nmelted `parts arecarried up on the sides -to be exposed above the meltedzportion. When the charge is melted, it is poured by revolving the ifurnace,as is shown by Fig. 3, the vblast and fuel being shut offy meanwhile.

-Thedetails of the construction maybe-.varied to suitthe different requirements.

z The fines after leavingthe Vflange/43 may be .curved downward or inwany desired direction instead ofpassing upward, asf shown. e The --methods of supporting and revolving thefurnace-bodylmay be varied from those shown so long as the two movements are provided for. 1

What I claim is- 1. A furnace provided lwith asingle opening and mounted to berevolved in two planes, combined with a set of fixed, concentrie'flues for .supplying air and fuel and discharging fur- .nace-gases, respectively,l and means 'for connectingfthezfurnaceand Hues and otherwise closingfthe former, andv means for rotating thefurnace kwhileso connected. '-1 2n The combinatlon with a furnace [having an opening on one side, of means .-for..intro- :.d-ucing heating material through. said opening .The shape of the furnace andthe arrangeand discharging it on allsides ofthezsamein directions, approximately .parallel Eto .the .Wall

surrounding the .,openingyand a' dischargeheatvto the .furnace `than 1s otherwise. obtainvconduit located centrally in ,said opening.

1.3:- A furnace wlith-a single opening mounted -.to=revol-ve and:to tiltback and forth, arset of flues .for conducting the blast and taking away the Yfurnace-gases, said furnace and; flues movable in relation to each other-1n additionto the revolving, and tiltingV movement above mentioned.

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4. The combination with -a funnaceuhaving a `revolving and vertically-.tilting body :with an :opening in its upper side, of a flue. yprovided with a flange adapted to lit over and'. completely close. said openingy about the f1ue,meansfor holding the flue and thefurnace together with the'openingthus closed, a second iiue, Ywithin thezfirst, communicating With the interior of the furnace, andlmeans for revolvingsthe-furnace while the parts-arethus held.

Y 5.r The combination with a furnace .having an approximately :pear-shaped body. open y at VIZO its upper end, of a set of flues'one Within the other opening into the furnace through said upper end, means for adjustably inclining the furnace, means for closely but revolubly connecting the open end of the furnace With the ends of the fines, and means for rotating the furnace.

6. The combination With a normally inclined furnace having an opening above only, of a set of fiues, one within the other, in position for communicating with the interior of the furnace through said opening, means for detachably connecting the iiues With the furnace and excluding the surrounding air, means .for at Will moving the furnace bodily from the fines, and means for at will tilting the furnace vertically.v

7 The combination With a normally inclined furnace having an opening above, only, of a set of fixed flues in position for communieating With the interior of the furnace through said opening, means for detachably connecting the ues With the furnace and closing the latter, means for at Will moving the furnace bodily from the flues, and means for at Will tilting the furnace vertically.

8. The combination with a normally inclined, revoluble furnace having an opening in its upper end, of aset of fixed flues in position to communicate With the interior through said opening, means for moving the furnace bodily to and from the iiues Without changing its inclination, means for revolubly connecting the furnace With the lines, and means for tilting the furnace vertically to empty it.

9. The combination with a suitable horizontal base, of a furnace arranged to slide upon the base and provided with an opening at one side of the medial plane, and a closure fixed in position to close the opening When the furnace is moved toward it upon the base.

l0. The combination with a suitable base, of a furnace sliding upon the base and having an opening atl one side of the medial plane, a closure in position to close said opening when the furnace slides toward it on the base, and means for locking the furnace against sliding movement.

l1. The combination with a furnace having a single opening, of a blast-tube discharging inwardly through the opening, a dischargeflue located in the blast-tube, a fuel-pipe passing toward the furnace in the discharge-flue and thence outward into the blast-flue to discharge with the latter.

12. A furnace with an opening in the side, a flue for the escape of the gases of combustion located in the center of the opening, an airblast iiue and fuel-jets located around the margin of the opening.

Signed at Chicago this 12th day of May, 1903.

WILLIAM ERASTUS WILLIAMS.

Witnesses:

J. W. WRAITH, JOHN DALY. 

